The trucks - construction, fire, police and landscaping - are out in force at Touch-a-Truck, 10 a.m.-2 p.m. Saturday outside Independence Mall, Kingston, along with train rides, games, demonstrations and food. Admission is free, but donations are encouraged. All proceeds benefit the Boston One Fund. For information, go to www.independencemall.com.

MAKE MUSIC

Music fills every plaza and corner at Make Music Harvard Square from 1-10 p.m. Saturday . Over 150 professional and amateur bands perform music of every genre at 20 locations. Pick up schedules and maps at Brattle and Palmer Streets. For information, go to www.harvardsquare.com

POOCH-A-PALOOZA

Bring your dog or come without one to Pooch-A-Palooza from 10 a.m. to 7 p.m. Saturday and Sunday at Prowse Farm, Canton. The festival features dog agility performances, interactive kids zone, live bands, marketplace of crafts and dog-related items and food trucks. Admission is $20 for adults and $10 for children. For information, go to www.pooch-a-palooza.com.

CHINATOWN FESTIVAL

Celebrate Chinese culture at Chinatown Main Street Festival from 11 a.m. to 5 p.m. Sunday at Tyler, Harrison, Beach, and Hudson streets, Boston. There will be lion dances, a karaoke competition, folk dance, opera, martial arts and more. Admission is free. For information, go to www.chinatownmainstreet.org.